7.3 idi knock

Brian VT

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I have the mesh with lid hold down nut.
Do you know if the dome lid will work on my intake? (if I can find one, or make one)
 

IDIBRONCO

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They all had that when they were new, as far as I know. We're talking about inside the air cleaner. If you have some type of bar that runs across the bottom of the air cleaner with a hole in it for the lid bolt, a baffle may hit that bar and not let the lid sit tightly down onto the bottom of the air cleaner.
 

Brian VT

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I'm confused. Sorry.
They all had it when new but I may not be able to use it? I haven't noticed any modifications done to my intake or lid. (not saying for sure though)
I have the screen and bar across the intake that the lid bolt screws into. How would the lid be held on if there was no bar?
 

WrenchWhore

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It helps me to have someone else crack injector lines while I stand back and listen. Much easier to separate it from the rest of the noise.
Not trying to thread jack but I just tried this today on my truck. I have a similar situation with what sounds like a single hammering injector that I can hear very clearly when standing 20ft infront of the truck. Once I start cracking injector lines loose it's very difficult to trace it with all the extra underhood noise. I did listen to each injector with a pry bar and noticed some injectors hammer and some don't. probably half do and half don't. Pump are unknown mileage and quite crusty. Maybe we need to crack an injector loose and step back to really listen??? I've been trying to train my GF so she can help me but she doesn't like diesel fuel smells and doesn't know what sounds i'm hearing :frustrate
 

IDIBRONCO

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I'm confused. Sorry.
They all had it when new but I may not be able to use it? I haven't noticed any modifications done to my intake or lid. (not saying for sure though)
I have the screen and bar across the intake that the lid bolt screws into. How would the lid be held on if there was no bar?
Pull your air cleaner off. Remove the lid and set it aside. Look at the hole in the bottom of the air cleaner that fits over the intake manifold. If there's a piece of metal that runs across the hole (that fits over the intake manifold), THAT'S what I'm talking about. I'm talking about the air cleaner. You're talking about the intake manifold. NO air cleaner had any type of mesh in it. The baffle that was on most, but not all air cleaner lids may hit that bar on the bottom of the air cleaner. I don't remember seeing a lid baffle and that bar on the same air cleaner.
 

Brian VT

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My air cleaner housing just has a hole in the bottom that fits over the outside of the intake. There's no bar across the hole on the bottom of the air cleaner housing.
The intake has a metal mesh screen covering it and a bar within that screen with threads to accept the bolt that holds the air cleaner lid (and the whole air cleaner) on. It looks all OEM to me.
If adding this dome thing on the lid/over the intake can knock the noise down a bit I'd really like to give it a go.
 

Old Goat

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That Dome shaped thing is refered to as a Soup Bowl. There are threads on the Soup Bowl delete, with the thinking it chokes down the air flow.
Here is a thread about it.

About 6 years ago I ran across another Ford Diesel guy when I was buying a car from him. He asked if I still had the Soup Bowl? We checked, and I did. He swapped me one he had w/o the bowl.

I think I gained another 50HP......JK....JK...
Your Air Cleaner assembly is probably like every one else`s. Either one is held down with the long Bolt down the center of the Lid.
There is the special Bolt that screws through the center of the Mesh/screen on top of the Intake manifold. It is threaded in the center for the long Bolt to hold it tight to the Manifold.

Here are a few threads to read to give you further info on the Mod.






Goat
 
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